My Shelix head has been good to me. If you like to work with figured wood, or tricky grain, it eliminates tearout. With straight knives, I was finding about 10% of the quartersawn white oak had tearout too deep to salvage. On the boards that weren’t ruined, there was often significant sanding to remove the tearout.

With the Shelix the tearout is gone, and the inserts last and last. Well worth the investment.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush